What a great idea, to attract so many authors from the mainstream social media services.
I would suggest to attract influencers. That way, they would certainly bring with them a great amount of people, their followers.
Take a look on Lauren Chen, Brittany Pettibone, Lauren Southern, Agustín Laje, Karen Straughan and so on. If you succeed taking in famous intellectuals like Jordan Peterson or Sam Harris, you will bring here an astonishing amount of new people with them.
I've followed you on:
Facebook as Thai Spir
Instagram as Spirajn
Twitter as Spirajn
Twitter as Sona Sewi
Hope the best. Your success is our success.